CN1947422A - Digital broadcast playback device and method, computer program, and storage medium - Google Patents
Digital broadcast playback device and method, computer program, and storage medium Download PDFInfo
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- CN1947422A CN1947422A CNA2005800125608A CN200580012560A CN1947422A CN 1947422 A CN1947422 A CN 1947422A CN A2005800125608 A CNA2005800125608 A CN A2005800125608A CN 200580012560 A CN200580012560 A CN 200580012560A CN 1947422 A CN1947422 A CN 1947422A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
- H04N21/4431—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB characterized by the use of Application Program Interface [API] libraries
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/44213—Monitoring of end-user related data
- H04N21/44222—Analytics of user selections, e.g. selection of programs or purchase activity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47205—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for manipulating displayed content, e.g. interacting with MPEG-4 objects, editing locally
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/8166—Monomedia components thereof involving executable data, e.g. software
- H04N21/8173—End-user applications, e.g. Web browser, game
Abstract
A digital broadcast playback device for playing back AV content included in a broadcast program and executing an application included in the broadcast program is provided. A playback mode management unit manages whether the AV content is to be played in a real-time mode or in a time-shift mode. A section analysis unit acquires applications included in the broadcast program and information showing activation conditions of the respective applications, from a digital stream containing the broadcast program. A filtering unit selects an application whose activation condition is the real-time mode if the AV content is to be played in the real-time mode, and an application whose activation condition is the time-shift mode if the AV content is to be played in the time-shift mode. An application execution unit activates the selected application, with playback of the AV content.
Description
Technical field
The present invention relates to the technology of playback interactive broadcasting program, particularly, relate to and transmit the technology that the activation of the application program (application) of interactive services data is controlled with server apparatus being used for.
Background technology
In digital television broadcasting program, can will use and multiplexing being in the same place of forming by video and voice data of AV (audio/video) content.The example of this kind application that sends by digital television broadcasting comprises that spectators participate in using and information provides application.Spectators participate in application program and demonstrate user interface, being used to receive for the answer of puing question to or the order of product, and the answer that received or order are sent to server apparatus in the broadcasting station.At this moment, information provides application from report or the press release of server apparatus reception about ongoing competitive sports, and demonstrates the information that is received.Digital broadcast playback device is carried out these application in conjunction with the playback of AV content, thereby realizes interactive services.
If the server apparatus in the broadcasting station can not provide service for this application, then such interactive application can't correctly be worked.Generally speaking, for providing the server apparatus of service, this application during the broadcasting of digital television broadcasting program (after this being referred to as " broadcast program " simply), may be in operation.Therefore,, and when broadcast program just is broadcasted, just immediately it is carried out playback (after this, this playback mode being called " in real time " playback), then can realize interactive services by digital broadcast playback device if receive the broadcast program that comprises this application.
Yet in case the off-the-air of broadcast program, through after a while, the operator might stop server apparatus providing service to application.For example, collected spectators are to the situation of the Live Radio of the suggestion of broadcast program contents, in case off-the-air continues opinion collection and then can not realize during reflected radio.
Therefore, if broadcast program is received and it is recorded in the recording medium such as hard disk drive, and behind off-the-air, from being read broadcast program (after this this playback mode being called " time shift playback ") by the recording medium of playback, then the service of being undertaken by server apparatus provides and can be stopped by playback duration.In this case, interactive application can not correctly be worked.
This causes realizing such advantage of digital broadcasting,, carries out application in conjunction with the playback of AV content that is.In addition, because digital broadcast playback device shows the user interface of the interactive application of the dysfunction replay image with the AV content, serious operational issue can appear.
Summary of the invention
The objective of the invention is to, the storage medium of a kind of digital broadcast playback device and method, computer program and the described computer program of storage is provided, can control activation neatly according to the playback mode of broadcast program thus to the application that comprises in the broadcast program.
Described purpose can realize by a kind of digital broadcast playback device, described digital broadcast playback device is used for the AV content that the playback broadcast program comprises, and the application that comprises in the execution broadcast program, it comprises: the playback mode identifying unit is used to judge that the AV content is with the real-time mode playback or with the time shift mode playback; Application acquisition unit is used for the information of obtaining the application that comprises and demonstrate the activation condition of each application broadcast program from the digital stream that comprises broadcast program; Selected cell is used for if with real-time mode playback AV content, then selects the application that its activation condition is a real-time mode from use, and if with time shift mode playback AV content, the application of mode shifter when then selecting its activation condition from use and being; With the activation unit, be used for playback by the AV content, activate selected application.
Should be noted that to activate to use to mean herein, make a kind of state of sd so of using, that is, the user can know visually that application is in executing state, and can operate this application.The example of state comprises like this, shows by carrying out to use the user interface that generates on the replay image of broadcast program.
According to above structure, digital broadcast playback device can activate the application corresponding with playback mode.In other words, be to play or with the time shift mode playback according to the AV content that comprises in the broadcast program with real-time mode, can control flexibly the activation of the application that comprises in the broadcast program.
Particularly, be used for providing during the broadcasting with broadcast program the activation condition of the application that the server apparatus of service communicates to be set to real-time mode, and mode shifter when being used for providing after the broadcasting with broadcast program the activation condition of the application that the server apparatus of service communicates to be set to.By such formation broadcast program, can be mode shifter when adopting real-time mode or employing according to playback, prevent to activate the application that when playback, can not realize interactive services.This has also solved the traditional operation problem of the user interface of the application that demonstrates dysfunction on the replay image of broadcast program.
Because according to the AV content is to play or activate suitable applications with the time shift mode playback with real-time mode, thus might be from the advantage of digital broadcasting, that is, carry out in conjunction with the playback of AV content and to use, in be benefited.
Herein, digital broadcast playback device also can comprise playback duration regulation unit, time when being used for regulation playback AV content, wherein, application acquisition unit is also obtained the information of the expiration time that shows each application from digital stream, and the application of selected cell after the time when also selecting its expiration time from use and being in this AV content of playback.
According to this structure, prevent that the application that can not use is activated when playback.The result is, the user interface of application that can the Presentation Function disorder on the replay image of broadcast program.
Herein, expiration time can be server apparatus thereafter no longer provides service for application by communication time.
According to this structure, if server apparatus does not then activate this application no longer for an application provides service when playback.The result is, can not show on the replay image of broadcast program can not and server apparatus between transmit the user interface of the application of data.
Herein, digital broadcast playback device also can comprise capacity of display acquiring unit, be used to obtain display capacity information, described display capacity information illustrates the capacity of display of the display device that is used to show the image that generates by playback AV content, wherein, application acquisition unit is also obtained from digital stream and is used to show the information of using the required capacity of display about each, and selected cell is also selected the application in the capacity of display that its required capacity of display is in display device from use.
According to this structure, can activate suitable applications according to the capacity of display of display device.
Herein, the capacity of display of display device can be in screen resolution, length-width ratio and the screen size of display device one of at least.
According to this structure, when broadcast program comprises the application that there are differences according to length-width ratio or comprises that the large-screen that is used for showing together bulk information is used and when being used for showing that with the stronger big font of visuality the small screen of a little information is used, can activate application optimum for display device aspect display layout.
Herein, digital broadcast playback device also comprises the playback controls unit, be used to receive appointment about the playback position of AV content, and begin playback AV content from specified playback position, wherein, the application of mode shifter had following function when its activation condition was, promptly, index information based on corresponding relation between part that shows the AV content and the playback position, present information to the user about the part of AV content, and, specify the playback position corresponding to the playback controls unit with user-selected part.
According to this structure, based on the characteristic of time shift playback, provide can make the user with the time mode shifter browse the Additional Services of required content, that is, the AV content that writes down on recording medium all can read in arbitrary position.
Herein, application acquisition unit also can be obtained index information from digital stream.
According to this structure, because index information is included in the broadcast program in advance, so need not to generate index information by utilizing graphical analysis etc. that the AV content is analyzed.Therefore, can reduce the throughput of digital broadcast playback device.
Herein, digital broadcast playback device also can comprise communication unit, be used for the appointment of reception server equipment, and obtain information from specified server equipment by network, wherein, the application of mode shifter had such function when its activation condition was, promptly, be communication unit given server equipment, and present the information of obtaining from server apparatus to the user, the information in the period when server apparatus provides and relates to broadcast program and covering (cover) play playback AV content after the off-the-air of broadcast program.
According to this structure, when with time shift mode playback broadcast program, activate the application that is used to provide the proprietary interactive services of time shift playback.In the time shift playback, this feasible advantage that might benefit from digital broadcasting promptly, is carried out application in conjunction with the playback of AV content.
Described purpose also can realize by a kind of digital broadcast playback method that is used for playback apparatus, described digital broadcast playback method is used for AV content that playback comprised and carry out the application that is comprised in broadcast program in broadcast program, described method comprises step: judge that the AV content is with the real-time mode playback or with the time shift mode playback; The information of from the digital stream that comprises broadcast program, obtaining the application that in broadcast program, comprises and being used to illustrate each application activating condition; If with real-time mode playback AV content, then from use, select the application that its activation condition is a real-time mode, and if with time shift mode playback AV content, the application of mode shifter when then from use, selecting its activation condition and being; And the playback of passing through the AV content, activate selected application.
Described purpose also can realize by a kind of computer program that is used for computer, described computer program is used for AV content that playback comprises and carry out the application that comprises in broadcast program in broadcast program, it comprises: being used to make computer-made decision AV content is will be with the real-time mode playback or with the program code of time shift mode playback; Be used for the program code that makes computer obtain the application that broadcast program, comprises and be used to illustrate the information of each application activating condition from the digital stream that comprises broadcast program; Be used for if then make computer select the application that its activation condition is a real-time mode from using with real-time mode playback AV content, and if the program code of the application of mode shifter when then making computer from use, select its activation condition to be with time shift mode playback AV content; And be used to make computer to activate the program code of selected application by the playback of AV content.
Described purpose also can realize by a kind of computer-readable recording medium, described computer-readable recording medium stores and is used for computer is used for AV content that playback comprises and the computer program of carrying out the application that comprises in broadcast program in broadcast program, and described computer program comprises: being used to make computer-made decision AV content is will be with the real-time mode playback or with the program code of time shift mode playback; Be used for the program code that makes computer obtain the application that broadcast program, comprises and be used to illustrate the information of each application activating condition from the digital stream that comprises broadcast program; Be used for if then make computer select the application that its activation condition is a real-time mode from using with real-time mode playback AV content, and if the program code of the application of mode shifter when then making computer from use, select its activation condition to be with time shift mode playback AV content; And be used to make computer to activate the program code of selected application by the playback of AV content.
Description of drawings
Fig. 1 illustrates the example of using the recording/playback device that the embodiment of the invention relates to;
Fig. 2 illustrates the example of the Program Map Table of the broadcast program in the first embodiment of the present invention;
Fig. 3 illustrates the internal structure of the recording/playback device among first embodiment;
Fig. 4 illustrates the example of application information list;
Fig. 5 is the flow chart of playback operation;
Fig. 6 is the flow chart of application controls operation;
Fig. 7 is the flow chart of filter operation;
Fig. 8 is the flow chart of application activating operation;
Fig. 9 A illustrates the selected application information list when playing broadcast program with real-time mode;
Fig. 9 B illustrates the selected application information list when with time shift mode playback broadcast program;
Fig. 9 C illustrates when the selected application information list during with time shift mode playback broadcast program after the expiration time that arrives App3 and App4;
Figure 10 illustrates the screen display when playing broadcast program with real-time mode;
Figure 11 illustrates the screen display when with time shift mode playback broadcast program;
Figure 12 illustrates when the screen display during with time shift mode playback broadcast program after the expiration time that arrives App3 and App4;
Figure 13 illustrates the example of the Program Map Table of the broadcast program in the second embodiment of the present invention;
Figure 14 illustrates the internal structure of the recording/playback device among second embodiment;
Figure 15 illustrates the example of index list in a second embodiment;
Figure 16 illustrates the screen display when playing broadcast program with real-time mode among second embodiment;
Figure 17 illustrates the screen display when with time shift mode playback broadcast program in a second embodiment;
Figure 18 is the flow chart of index display application executable operations;
Figure 19 illustrates the example of the Program Map Table of the broadcast program in the third embodiment of the present invention;
Figure 20 illustrates the internal structure of the recording/playback device among the 3rd embodiment;
Figure 21 is illustrated in the process of obtaining display capacity information among the 3rd embodiment;
Figure 22 is the flow chart of the filter operation among the 3rd embodiment;
Figure 23 is illustrated in the screen display when using the high standard display device to play broadcast program among the 3rd embodiment; And
Figure 24 is illustrated in the screen display when using low specification display device to play broadcast program among the 3rd embodiment.
Embodiment
(first embodiment)
Below, the recording/playback device 200 according to first embodiment of the invention is described.
Fig. 1 illustrates the example of the use of recording/playback device 200.Recording/playback device 200 constitutes the digital broadcasting copic viewing system with antenna 100, remote controller 300 and TV 400.Broadcasting station 500 broadcast digital TV broadcast programs.Broadcast program by broadcasting station 500 broadcasting comprises AV content of being made up of video and voice data and the one or more application that are used for interactive services.Broadcasting station 500 is equipped with broadcasting equipment and server apparatus, and described broadcasting equipment is used to launch the digital television broadcasting electric wave, and described server apparatus is used for providing interactive services by the data that network and 200 transmission of recording/playback device relate to broadcast program.
According to user's operation, recording/playback device 200 is 500 reception broadcast programs from the broadcasting station, and write down and/or play this broadcast program.Herein, the playback of broadcast program means, the AV content that is comprised in the playback broadcast program, but also carry out the application that comprises in the broadcast program.The application of being carried out by recording/playback device 200 is used for transmitting data by network and 500 of broadcasting stations, so that realize interactive services thus.
Below, will describe the broadcast program of 500 broadcasting in detail from the broadcasting station.Broadcast program is to launch with the form of transport stream (after this being abbreviated as " TS "), wherein, will comprise the flow data and multiplexing being in the same place of fragment data (section data) that comprises management information and one or more application of video and voice data.
Management information comprises the Program Map Table (PMT) of the composition that is used to illustrate broadcast program.Fig. 2 illustrates the example of PMT.
In the figure, PMT 501 expressions are launched by video data, voice data and four broadcast programs that application App1 to App4 constitutes by TS.PMT 501 comprises time slot 502, video data identifier 503, audio data identifier 504 and application data identifiers 505 to 508.Time slot 502 illustrates the broadcasting time started and the off-the-air time of broadcast program.Video data identifier 503, audio data identifier 504 and application data identifiers 505 to 508 illustrate the packet identifier of the grouping of carrying video data, voice data and four application respectively.
Activation condition and expiration time are to be judged the information whether application will be performed by reference when the broadcast program in the broadcast recording/playback device 200.Whether activation condition is illustrated in the real-time playback of broadcast program or the time shift playback will activate application.Use if in real-time playback, activate, then activation condition is arranged to " 1 ", use, then activation condition is arranged to " 2 " if in the time shift playback, activate.No matter be real-time playback or time shift playback, then activation condition is set to arbitrary value (for example, " 0 ") if can activate application.Expiration time illustrates thereafter and uses the then no longer executable time.For example, the date and time of the interactive services that stops to provide corresponding with this application of the server apparatus in the broadcasting station 500 is set to expiration time.If use without any time restriction carrying out, then expiration time be arranged to arbitrary value (for example, " 0 ").
The internal structure of recording/playback device 200 below will be described.Fig. 3 illustrates the internal structure of recording/playback device 200.As shown in the figure, recording/playback device 200 comprises operation receiving element 1, recording/playback control unit 2, tuner 3, TS decoding unit 4, broadcast program storage unit 5, playback mode management unit 6, AV decoding unit 7, section analysis unit 8, application memory unit 9, application information list generation unit 10, filter element 11, application execution unit 12, application display unit 13, the network equipment 14 and clock unit 15.
Recording/playback control unit 2 is controlled the recording operation and the playback operation of user-selected broadcast program respectively according to record request and playback request.
In recording operation and real-time playback operation, tuner 3 is selected the frequency by 2 indications of recording/playback control unit from the broadcasting wave that antenna 100 receives, and obtains the TS of user-selected channel.
In recording operation, TS decoding unit 4 outputs to recording/playback control unit 2 with the TS that tuner 3 is obtained.In playback operation, TS that 4 pairs of tuners 3 of TS decoding unit are obtained or the TS that reads from broadcast program storage unit 5 decode, to obtain flow data and fragment data.
Broadcast program storage unit 5 is the mass-memory units such as internal hard disk drive, is used to store the broadcast program of TS form.
Playback mode management unit 6 is by keeping playback mode information and playback duration information, and management is requested the playback mode of the broadcast program of playback.It is that current broadcast (real-time playback) still is stored in (time shift playback) in the broadcast program storage unit 5 that playback mode information illustrates broadcast program, and playback duration information illustrates the date and time when asking playback.In real-time playback, playback mode information is set to " 1 ", and in the time shift playback, playback mode information is configured to " 2 ".According to user's playback request, from recording/playback control unit 2 notice playback mode informations.Playback duration information is configured to the shown date and time of when from recording/playback control unit 2 notice playback mode informations clock unit 15.
Application information list generation unit 10 is used at each defined application information table among the PMT that exports from section analysis unit 8 is analyzed, and generates application information list.Fig. 4 illustrates the example of application information list.As shown in the figure, application information list illustrates application message, and for each application that comprises in broadcast program, application message is made up of application identities symbol, control routine, Apply Names, activation condition, expiration time and programm name.
The network equipment 14 is according to the instruction that comes each performed application of free application execution unit 12, communicates with server apparatus in the broadcasting station 500.
Below describe by the performed playback operation of the recording/playback device 200 with above structure.Fig. 5 is the flow chart of playback operation.
At first, operation receiving element 1 receives playback request and to the appointment of broadcast program that will playback from the user, and they are outputed to recording/playback control unit 2 (S1).In real-time playback, use channel number and broadcast program name to carry out the appointment of broadcast program.In the time shift playback, use the broadcast program name of storage in broadcast program storage unit 5 to carry out the appointment of broadcast program.
Recording/playback control unit 2 judges whether use channel number to carry out the appointment (S2) of broadcast program.If use channel number to specify (S2: be), then recording/playback control unit 2 judges that playback request is the real-time playback request, and indication tuner 3 is selected channel and obtained TS (S3).Specify (S2: not) if only use the broadcast program name of storage in the broadcast program storage unit 5, then recording/playback control unit 2 judges that playback request is the time shift playback request, and reads the TS (S4) of the broadcast program that is identified by broadcast program name from broadcast program storage unit 5.Then, recording control unit 2 is notified specified broadcast program to TS decoding unit 4.
4 couples of TS that obtained in step S3 and S4 of TS decoding unit decode, with video data, voice data and the fragment data (S5) of isolating specified broadcast program.If from the isolated data of TS is flow data (S6: be), then TS decoding unit 4 outputs to AV decoding unit 7 with these data.If from the isolated data of TS is that (S6: not), then TS decoding unit 4 outputs to section analysis unit 8 with these data to fragment data.
Meanwhile, fragment data is carried out application controls operation (S8).Particularly, according to playback mode, carry out the application that in fragment data, comprises selectively.This has just finished playback operation.
Below, the application controls operation will be described in more detail.Fig. 6 is the flow chart of application controls operation.
At first, fragment data is analyzed, to obtain application and application information list (S11 to S13).
That is to say that section analysis unit 8 is obtained the fragment of definition about the information of broadcast program from fragment data, and convert this fragment to PMT (S11).Section analysis unit 8 is also obtained the fragment that relates to application data from fragment data, converts this fragment to application, and they are stored in (S12) in the application memory unit 9.Application information table among 10 couples of PMT that obtained in step S11 of application information list generation unit is analyzed, and generates application information list (S13).
Application information list generation unit 10 outputs to filter element 11 with the application information list that is generated.Filter element 11 is carried out filter operations, is used for selecting each set of application information that its activation condition and expiration time are met from application information list, and generates selected application information list, and this table is formed (S14) by selected set of application information.Filter element 11 outputs to application execution unit 12 with selected application information list.Application execution unit 12 is carried out the application activating operation, is used to be enabled in each application (S15) shown in the selected application information list.This has just finished the application controls operation.
Below, will describe in more detail by the performed filter operation of filter element 11.Fig. 7 is the flow chart of filter operation.
At first, filter element 11 obtains playback mode information and playback duration information (S21) from playback mode management unit 6.Then, each set of application information in 11 pairs of application of filter element information list is carried out the circulation (loop) from step S22 to S28.
If activation condition is shown as " 1 " that shows that application will be carried out in real-time playback, or show " 2 " (S23: be) that application will be carried out in the time shift playback, then filter element 11 check activation conditions value whether with the shown value of playback mode information that in step S21, is obtained be complementary (S24).If they mate (S24: be), then filter element 11 is registered in (S25) in the selected application information list with this application message.
If being shown as, activation condition shows that (S23: not), then filter element 11 is checked the expiration time of using (S26 to S27) in " 0 " of not setting any activation condition.
That is to say filter element 11 judges whether stipulate expiration time (S26) in application message.If do not stipulate that (S26: not), then filter element 11 is registered in (S25) in the selected application information list with this application message to expiration time.If stipulated expiration time (S26: be), then filter unit 11 judges whether the shown date and time of playback duration information that obtains does not surpass expiration time (S27) in step S21.If do not surpass expiration time (S27: be), then filter element 11 is registered in (S25) in the selected application information list with this application message.Then, filter element 11 judges whether there is any not processed application message (S28) in application information list.If exist, then filter element 11 turns back to step S22.This just can finish filter operation.
The application activating operation of being carried out by application execution unit 12 below will be described in more detail.Fig. 8 is the flow chart of application activating operation.
12 pairs of each set of application information in selected application information list of application execution unit are carried out the circulation from step S31 to S34, use to start, and generate the image that is used to show.
At first, application execution unit 12 reads untreated application message (S31) from selected application information list.
Then, application execution unit 12 judges whether there is any untreated application message (S34) in selected application information list.If exist, then application execution unit 12 turns back to step S31.This has just finished the application activating operation.
Below describe, when playback broadcast program in multiple situation, from the replay image of recording/playback device 200 outputs.
As an example, the broadcast program of Bo Fanging is the Live Audio in the football match in 19 o'clock on the 21st March in 2004 herein, and it is made up of video data, voice data and four application App1 to App4.
App1 to App4 respectively realizes different interactive services.Particularly, App1 has following function, that is, the server apparatus from broadcasting station 500 obtains the information about the football match of still carrying out in other stadium during the broadcasting of broadcast program, and shows the information of being obtained.From broadcasting time started of broadcast program to the off-the-air time, server apparatus provides the service of emission data for App1.App2 has following function,, obtains the result of other football matches of carrying out from server apparatus after the broadcasting of broadcast program that is, and shows the result who is obtained.Server apparatus upgrades the match result data every day, and provides up-to-date result of the match data for App2 when broadcast program is play.After time, server apparatus provides the service of emission data for App2 at the off-the-air of broadcast program.App3 has following function, that is, show the image of the answer be used for importing the enquirement that broadcast program provides, and answer is sent to server apparatus.From 1,0 o'clock on the April of broadcasting time started to 2004 of broadcast program, server apparatus provides the service that receives answer data for App3.App4 has following function, that is, show the image that is used to import the comment (comment) about broadcast program, and comment is sent to server apparatus.From 1,23: 59 on the December of broadcasting time started to 2004 of broadcast program, server apparatus provides the service that receives comment data for App4.
The PMT of this broadcast program is the PMT 501 shown in Fig. 2.In PMT 501, for respective application provides period of service, activation condition and expiration time that each application message is concentrated are set according to server apparatus wherein.When the playback broadcast program, based on PMT 501, generate application information list as shown in Figure 4 by application information list generation unit 10.
At first, suppose to play broadcast program in real time 19 o'clock on the 21st March in 2004, and at this moment, the broadcasting of the program of going on the air.
In this case, the playback mode information in the playback mode management unit 6 demonstrates " 1 " of expression real-time playback, and the playback duration information in the playback mode management unit 6 demonstrates 19 o'clock on the 21st March in 2004 as the broadcasting time started of broadcast program.In case so, the selected application information list of filter element 11 generations shown in Fig. 9 A.This selected application information list includes its activation condition and is later than the App3 in 19 o'clock on the 21st March in 2004 and the application message of App4 for application message and its expiration time of the App1 of " 1 ".Based on this selected application information list, application execution unit 12 starts App1, App3 and App4.
The result is, wherein, will to be shown with the video from 7 outputs of AV decoding unit by the image that App1, App3 and App4 generate at the replay image shown in Figure 10 from application display unit 13 outputs.
Secondly, suppose that broadcast program is recorded in the broadcast program storage unit 5 at first, 12 o'clock on the 1st May in 2004 it is carried out the time shift playback afterwards.
In this case, the playback mode information in the playback mode management unit 6 demonstrates " 2 " of expression time shift playback, 1 day 12 May in 2004 when the playback duration information in the playback mode management unit 6 demonstrates the request playback.In case so, the selected application information list of filter element 11 generations shown in Fig. 9 B.This selected application information list includes its activation condition and is the application message of the App2 of " 2 " and the application message that its expiration time is later than the App4 in 12 o'clock on the 1st May in 2004.Based on selected application information list, application execution unit 12 starts App2 and App4.
The result is, wherein, will to be shown with the video from 7 outputs of AV decoding unit by the image that App2 and App4 generate at the replay image shown in Figure 11 from application display unit 13 outputs.
The difference of real-time playback image as shown in figure 10 and time shift replay image shown in Figure 11 is following aspect.In Figure 10, be presented at the progress of other football matches at other places, stadium according to App1.In Figure 11, simultaneously, be presented at the result of other football matches of carrying out after the broadcasting of broadcast program according to App2.In this manner, recording/playback device 200 according to be with real-time mode or with the time mode shifter carry out playback, transmit suitable interactive services.
In addition, suppose that broadcast program is recorded in the broadcast program storage unit 5 at first, 12 o'clock on the 1st January in 2005 it is carried out the time shift playback afterwards.
In this case, the playback mode information in the playback mode management unit 6 demonstrates " 2 " of expression time shift playback, 12 o'clock on the 1st January in 2005 when the playback duration information in the playback mode management unit 6 demonstrates the request playback.In case so, the selected application information list of filter element 11 generations shown in Fig. 9 C.This selected application information list includes the application message of its activation condition for the App2 of " 2 ".Because the expiration time of App3 and App4 is early than 12 o'clock on the 1st January in 2005, so do not comprise the application message of App3 and App4 in this selected application information list.Based on this selected application information list, application execution unit 12 only starts App2.
The result is, wherein, will to be shown with the video from 7 outputs of AV decoding unit by the image that App2 generates at the replay image shown in Figure 12 from application display unit 13 outputs.
In this manner, recording/playback device 200 according to when carrying out playback, provides suitable interactive services by only carrying out the application that service is provided by server apparatus when the playback.
According to this embodiment,, might avoid activating the interactive services that when broadcast program playback server apparatus can not provide service to it by playback mode (in real time or time shift) or expiration time are set for each interactive application in the broadcast program.This has eliminated because of carrying out server apparatus the traffic of not expecting that interactive application caused of the dysfunction of service no longer is provided for it.In addition, can also prevent the operational issue that the user interface of the interactive application of Presentation Function disorder caused owing on the replay image of broadcast program.
Herein, for the application with expiration time, if the airtime has surpassed expiration time, even in real-time playback, this application can not be activated yet.Therefore, when real-time playback has the projection again (rerun) of the composition identical with former broadcast program, the application that surpasses its expiration time when broadcasting again will can not be enabled in.This makes that the broadcasting station there is no need no longer to provide any should be used for recombinating (recompose) of service to show again to it by eliminating server apparatus when broadcasting again.
In above example, when being recorded at first from the broadcast program that broadcasting wave obtains on the recording medium and afterwards during playback, can not activating the application that is used for real-time playback.Yet,, when recording medium reads with playback, provide the server apparatus of service still may be in operation to the application that is used for real-time playback at broadcast program even if broadcast program is recorded on the recording medium at first.
For example, when continuing the recorded announce program, allow from the situation of the tracking playback (chasing playback) of the recording section that begins to watch this broadcast program, for the application of real-time playback provides the server apparatus of service might be in the operation, till the broadcast program off-the-air.
In this case, filter element 11 can be that the application message of the application of real-time playback is registered in the selected application information list with its activation condition, till the off-the-air of broadcast program based at the time slot shown in the PMT.
(second embodiment)
The broadcast program that uses among first embodiment is configured to all can realize interactive services to real-time playback and time shift playback.This is based on following hypothesis, that is, server apparatus is during the broadcasting of broadcast program and suitable interactive services all is provided afterwards.
Yet in fact, the broadcasting station of many new broadcast programs of every day broadcasting may be during the broadcasting of each program in these broadcast programs and afterwards, and different services can not be provided.
In view of this, the second embodiment of the present invention has been described and has been utilized the characteristic of time shift playback that non-interactive services is provided.
In the broadcast program situation of real-time playback, when the broadcasting of broadcast program is carried out, sequentially obtain AV content the broadcast program from broadcasting wave.Therefore on the other hand, in the broadcast program situation of time shift playback, the AV content stores in the broadcast program in broadcast program storage unit 5, and can be read it at an arbitrary position.Based on this specific character of time shift playback, the application that will be used for playback AV content at an arbitrary position is included in broadcast program as the application that is used for the time shift playback of this embodiment.
Employed in this embodiment broadcast program is at first described.As an example, broadcast program is the news program that includes video data, voice data and two application (that is the App12 that is used to implement the App11 of playback and is used for the time shift playback).
Figure 13 illustrates the example of the PMT of this broadcast program.PMT 521 shown in Figure 13 is with the difference of PMT 501 shown in Figure 2, has added program index table 527.
In PMT 521, time slot 522, video data identifier 523, audio data identifier 524, application data identifiers 525 to 526 have identical structure with among the application information table 529 that comprises App11 information 530 and App12 information 531 and the PMT 501 which.
Program index table 527 comprises program index information 1 528, and it is used by the App12 that is used for the time shift playback.Program index information 1 528 comprise program identifier, time slot, index count and corresponding to the playback position of each index and title name form right.
Program identifier is discerned the broadcast program among the TS onlyly.Time slot illustrates the broadcasting time started and the off-the-air time of broadcast program.Index count illustrates the index number corresponding to the broadcast program that will be shown by App12.Real time when playback position uses broadcast program to be broadcasted is illustrated in the broadcast program position corresponding to index.Title is to show the employed character string of index by App12.In program index information 1 528, the playback position identical with quantity shown in the index count and the quantity of title are set.
Although the real time when using broadcast program to be broadcasted is in this example represented playback position, also can replace use and represent playback position from the relative time that broadcast program begins.
Figure 14 illustrates the internal structure of recording/playback device 200 in this embodiment.The difference of itself and structure shown in Figure 3 is, has added index list generation unit 16.
Index list generation unit 16 generates concordance list such as shown in figure 15 according to the program index table that defines among the PMT, and it is stored in the temporary storage area.
When recording/playback device 200 real-time playbacks with above structure have the broadcast program of the composition shown in PMT521, start the App11 that is used for real-time playback, the result shows replay image as shown in figure 16 on TV 400.
On the other hand, when recording/playback device 200 time shift playback broadcast programs, start the App12 that is used for the time shift playback, the result shows replay image as shown in figure 17 on TV 400.The user interface of App12 shown here illustrates the index list of the different content part of broadcast program, and from the selection of user's reception to index.
Below describe in detail by application execution unit 12 and be used for the index display application executable operations that the App12 of time shift playback carries out by execution.Figure 18 is the flow chart of index display application executable operations.
At first, the index list (S41 to S45) of the content part of application execution unit 12 broadcast program.
That is to say that application execution unit 12 reads the index list (S41) that is generated by index list generation unit 16 from the temporary storage area.Then, the circulation that application execution unit 12 is carried out from step S42 to S44 is to obtain playback position and the title corresponding to each index in the index list.Application execution unit 12 indication application display unit 13 show that being used to illustrate with the title is the user interface (S45) of the tabulation of index.
After this, application execution unit 12 is waited for the selection to index (S46) that the user is undertaken by remote controller 300.If choose wherein any index (S46: be), then application execution unit 12 to recording/playback control unit 2 notice about with the corresponding playback position of selected index so that read AV content (S47) in the broadcast program with the playback position place storage of playback in broadcast program storage unit 5.
Therefore, when broadcast program was play in time shift, the application demonstration that is used for the time shift playback was used to show the index list of broadcast program contents and is used for from the user interface of user's reception to the selection of index.In case choose index, just with the corresponding playback position of selected index place's playback broadcast program in the AV content.
According to this embodiment, based on the characteristic of time shift playback, can realize making the user to watch the Additional Services of required content selectively, just, broadcast program is stored on the recording medium, thereby can locates to read the AV content at an arbitrary position.After the broadcasting of broadcast program, need not to send such Additional Services under the condition that server apparatus is operated.
(the 3rd embodiment)
In the first embodiment of the present invention, be to play in real time or time shifting broadcasting is selected the application that will carry out according to broadcast program.In the third embodiment of the present invention, according to the screen specification of the display device that is used to show replay image, the application that selection will be carried out.
In first embodiment, PMT comes the activation condition of given application based on using whether can carry out in real-time playback or time shift playback.
On the other hand, in the 3rd embodiment, PMT is based on the capacity of display of the display device of the replay image that is used for broadcast program, comes the activation condition of given application.In case so, the recording/playback device 200 in the 3rd embodiment is carried out such application, promptly, this application provides such as character size, color scheme, with the user interface capabilities of layout and so on, these functions can be suitable for the specification of display device, to strengthen user-friendliness.
Figure 19 illustrates the PMT example of broadcast program in this embodiment.In PMT 541 as shown in the figure, the activation condition of App21 in the App21 information 548 is set to represent will activate " 11 " of this application when screen resolution is equal to or greater than VGA, and the activation condition of the App22 in the App22 information 549 is set to represent will activate " 10 " of this application when screen resolution is lower than VGA.
Although in this example screen resolution is used as the capacity of display, also can replace other attributes use such as screen size and the length-width ratio.Can with how and the activation condition that will activate application is arranged to arbitrary value (for example, " 0 ") regardless of the capacity of display.
Figure 20 shows the internal structure of recording/playback device 200 in this embodiment.Be with the difference of structure shown in Figure 3, added screen information acquisition unit 17.
The capacity of display notification unit of screen information acquisition unit 17 from TV 400 obtains the display capacity information of the attribute (for example, screen resolution, length-width ratio, or screen size) that is used to illustrate TV 400.Screen information acquisition unit 17 is stored in the display capacity information of being obtained in the playback mode management unit 6.
Recording/playback device 200 is connected according to IEEE (Institute of Electrical and Electric Engineers) 1394 each other with TV 400.In case so, by the device authentication protocol transmission facility information of basis IEEE1394 as shown in figure 21, realize the obtaining display capacity information of being undertaken by screen information acquisition unit 17.
Recording/playback device 200 with above structure is carried out following playback operation.Playback operation difference among the playback operation in the 3rd embodiment and first embodiment is to generate from application information list the filter operation of selected application information list.Figure 22 is the flow chart of the filter operation in the 3rd embodiment.
At first, filter element 11 is from playback mode management unit 6 reading displayed capacity informations (S51).Then, each set of application information in 11 pairs of application of filter element information list is carried out the circulation from step S52 to S56.
If activation condition is to represent how the capacity of display all will start " 0 " of application (S53: deny), and then filter element 11 is registered in (S55) in the selected application information list with application message.
To start if if activation condition is equal to or greater than VGA for the expression screen resolution application " 11 " if or the expression screen resolution be lower than VGA then will start " 10 " (S53: be) of application, then filter element 11 is judged and whether is satisfied activation condition (S54) based on the screen resolution of the shown TV 400 of display capacity information that is read at step S51.If satisfy activation condition (S54: be), then filter element 11 is registered in (S55) in the selected application information list with application message.Filter element 11 judges whether there is untreated application message (S56) in application information list.If there be (S56: be), then filter element 11 turns back to step S52.This has just finished filter operation.
Below, be described among the 3rd embodiment from the concrete example of the replay image of recording/playback device 200 outputs.
When by being recording/playback device 200 that the TV 400 of SVGA links to each other when playing broadcast programs, only activate App21 with the capacity of display.The result is that demonstration replay image shown in Figure 23 on TV 400 wherein, is showed the image that App21 generated with the video of exporting from AV decoding unit 7.
Herein, App21 is the application of tabulation that is used to show all football match results of the broadcasting day that proceeds to broadcast program.App21 makes the user can watch bulk information together on large-screen.
On the other hand, when by being recording/playback device 200 that the mobile phone of QVGA is connected when playing broadcast programs, only carry out App22 with the capacity of display.Thereby, on mobile phone, demonstrate replay image as shown in figure 24, wherein, the image that App22 generated is shown with the video from 7 outputs of AV decoding unit.
App22 is that being used for two football matches is unit, is presented at all football match results' that carry out before broadcasting day and this day application.When the user when being pressed in " next " button of showing on the screen or " last " button, roll display information is to show another result of the match.Amount by all once shown information of App2 is very little, thereby, even if in the zonule, show these information, also can use big character.In addition owing to only occupy very zonule by the image that App2 generated, can be in big zone display video so that improve visuality on the small screen.
According to this embodiment, the capacity of display according to the display device that links to each other with recording/playback device 200 is provided with the activation condition of using in the broadcast program.Therefore, according to the capacity of display of display device, can activate the user interface operability and the visual application that can provide higher.
For example, be used for showing together that the large-screen of bulk information is used or when being used for showing that with the stronger big font of visuality the small screen of a little information is used, can activate application optimum for display device when broadcast program comprises according to length-width ratio different application or comprise in display layout.
(modification)
Although described the present invention by above embodiment, the present invention is not limited thereto.Below provide the modification of example.
(1) the present invention also is applied to the back method by the represented program realization of each flow chart described in above embodiment.This method can realize by the computer program of writing with program description language.Such computer program can be distributed as digital signal.
In addition, the present invention can be by recording aforementioned calculation machine program or digital signal on it computer-readable recording medium (for example, floppy disk, hard disk, CD-ROM, MO, DVD, DVD-ROM, DVD-RAM, BD (Blu-ray Disc, Blu-ray Disc), or semiconductor memory) realize.Conversely, the present invention also can realize by computer program or the digital signal that is recorded in such storage medium.
Also can pass through network, for example, telecommunications network, wired or wireless communication net, or Internet, or by digital broadcasting, send and realize computer program of the present invention or digital signal.
By distributing the storage medium that records computer program or digital signal on it, or, computer program or digital signal can be offered independently computer system by network sending computer program or digital signal.Then, independently computer system executable computer program or digital signal are to play effect of the present invention.
The present invention also can realize by the computer system that comprises microprocessor and memory.In this case, computer program can be stored in the memory, operate according to this computer program by microprocessor.
(2) the present invention can realize by the LSI that recording/playback device described in the above embodiment is controlled.Such LSI can comprise that the functional block with lower unit realizes by integrated, these functional blocks comprise: operation receiving element 1 as shown in Figure 3, recording/playback control unit 2, TS decoding unit 4, playback mode management unit 6, AV decoding unit 7, section analysis unit 8, application information list generation unit 10, filter element 11, application execution unit 12, application display unit 13, the network equipment 14 and clock unit 15, index list generation unit 16 as shown in figure 14 and screen information acquisition unit as shown in figure 20 17.These functional blocks can be configured to LSI separately, or partly or entirely be configured to system LSI.
It is integrated and replace LSI special use or general processor can be used for circuit herein.Also can use FPGA (field programmable gate array), and can reconfigure the re-configurable processor that is connected and the interior circuit unit of LSI chip is set as the LSI chip that can after manufacturing, programme.In future, if, then can use this technology integrated functionality piece owing to the progress of semiconductor and other technologies is developed the new IC technology that can replace traditional LSI.For example, can adopt biotechnology to such technology.
(3) above embodiment has described the situation that internal hard disk drive is used for the recorded announce program, but equally also can use the External memory equipment that links to each other with recording/playback device.
(4) digital broadcast playback device according to the present invention need not to have writing function.For example, can be used as digital broadcast playback device with having the digital television of using the execution function.
(5) any recording medium can be used for the recorded announce program.The example of such recording medium comprises: such as DVD-RAM, DVD-RW, DVD-R, DVD+RW, DVD+R, CD-R, or the CD of CD-RW and so on; Magneto optical disk such as PD or MO; Such as compact flash memory card, smart media card (SmartMedia card), memory stick card (Memory Stick card), multimedia card (MultiMediaCard), or the semiconductor memory card of pcmcia card and so on; Such as floppy disk, Superdisk (SuperDisk), Zip, or the disk of Clik and so on; With such as ORB, Jaz, SparQ, SyJet, EZFley, or the removable hard disk drive of Microdrive and so on.
(6) modification described in above embodiment and the modification can be carried out independent assortment.
Commercial Application
The present invention for example can be used for the digital broadcast playback of playback digital television broadcasting program and establishes Standby.
Claims (11)
1, a kind of digital broadcast playback device is used for the AV content that the playback broadcast program comprises, and carries out the application that comprises in the described broadcast program, and it comprises:
The playback mode identifying unit is used to judge that described AV content is will be with the real-time mode playback or with the time shift mode playback;
Application acquisition unit is used for the information of obtaining the application that comprises and be used to illustrate the activation condition of described each application described broadcast program from the digital stream that comprises described broadcast program;
Selected cell, be used for if with the described AV content of real-time mode playback, then from described application, select the application that its activation condition is a real-time mode, and if with the described AV content of time shift mode playback, the application of mode shifter when then from described application, selecting its activation condition and being; With
Activate the unit, be used for playback, activate selected application by described AV content.
2, according to the digital broadcast playback device of claim 1, also comprise,
Playback duration regulation unit, the time when being used for the described AV content of regulation playback,
Wherein, described application acquisition unit is also obtained the information of the expiration time that is used to illustrate described each application from described digital stream, and
Application after time when described selected cell is also selected its expiration time and is in the described AV content of playback from described application.
3, according to the digital broadcast playback device of claim 2,
Wherein, described expiration time is that server apparatus no longer provides the time of service for described application by communicating by letter thereafter.
4, according to the digital broadcast playback device of claim 1, also comprise,
Capacity of display acquiring unit is used to obtain display capacity information, and described display capacity information illustrates the capacity of display of the display device that is used to show the image that generates by the described AV content of playback,
Wherein, described application acquisition unit is also obtained the information that is used to illustrate the required capacity of display of described each application from described digital stream, and
Described selected cell is also selected the application in the capacity of display that its required capacity of display is in described display device from described application.
5, according to the digital broadcast playback device of claim 4,
Wherein, the capacity of display of described display device be in screen resolution, length-width ratio and the screen size of described display device one of at least.
6, according to the digital broadcast playback device of claim 1, also comprise,
The playback controls unit is used to receive the appointment of the playback position of described AV content, and begins the described AV content of playback from the playback position of described appointment,
Wherein, the application of mode shifter had following function when its activation condition was, promptly, based on being used to illustrate the part of described AV content and the index information of the corresponding relation between its playback position, provide information to the user about the part of described AV content, and, specify and the described user-selected corresponding playback position of part for described playback controls unit.
7, according to the digital broadcast playback device of claim 6,
Wherein, described application acquisition unit is also obtained described index information from described digital stream.
8, according to the digital broadcast playback device of claim 1, also comprise,
Communication unit is used for the appointment of reception server equipment, and obtains information by network from described specified server equipment,
Wherein, the application of mode shifter had following function when its activation condition was, that is and, specify described server apparatus for described communication unit, and present the information of obtaining by described server apparatus to the user, and
Described server apparatus provides the information in the period when relating to described broadcast program and covering after the off-the-air of described broadcast program the described AV content of playback.
9, a kind of digital broadcast playback method that is used for playback apparatus, described method are used for AV content that playback comprises and carry out the application that comprises in described broadcast program in broadcast program, comprise step:
Judge that described AV content is will be with the real-time mode playback or with the time shift mode playback;
The information of from the digital stream that comprises described broadcast program, obtaining the application that in described broadcast program, comprises and being used to illustrate the activation condition of described each application;
If, then from described application, select the application that its activation condition is a real-time mode, and if with the described AV content of time shift mode playback with the described AV content of real-time mode playback, the application of mode shifter when then from described application, selecting its activation condition and being; And
By the playback of described AV content, activate selected application.
10, a kind of computer program that is used for computer, described computer program are used for AV content that playback comprises and carry out the application that comprises in described broadcast program in broadcast program, it comprises:
Being used to make the described AV content of described computer-made decision is will be with the real-time mode playback or with the program code of time shift mode playback;
The program code of information that is used for making described computer to obtain the application that described broadcast program, comprises and be used to illustrate the activation condition of described each application from the digital stream that comprises described broadcast program;
Be used for if then make described computer select the application that its activation condition is a real-time mode from described application with the described AV content of real-time mode playback, and if the program code of the application of mode shifter when then making described computer from described application, select its activation condition to be with the described AV content of time shift mode playback; And
Be used to make described computer to activate the program code of selected application by the playback of described AV content.
11, a kind of computer-readable recording medium stores the computer program that uses in the computer, is used for AV content that playback comprises in broadcast program and carry out the application that comprises in described broadcast program, and described computer program comprises:
Being used to make the described AV content of described computer-made decision is will be with the real-time mode playback or with the program code of time shift mode playback;
The program code of information that is used for making described computer to obtain the application that described broadcast program, comprises and be used to illustrate the activation condition of described each application from the digital stream that comprises described broadcast program;
Be used for if then make described computer select the application that its activation condition is a real-time mode from described application with the described AV content of real-time mode playback, and if the program code of the application of mode shifter when then making described computer from described application, select its activation condition to be with the described AV content of time shift mode playback; And
Be used to make described computer to activate the program code of selected application by the playback of described AV content.
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| EP (1) | EP1757101B1 (en) |
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| US20020124259A1 (en) * | 2000-09-27 | 2002-09-05 | Chang Edward Y. | Client-based interactive digital television architecture |
| US8352988B2 (en) * | 2000-11-27 | 2013-01-08 | Cox Communications, Inc. | System and method for time shifting the delivery of video information |
| US20020133562A1 (en) * | 2001-03-13 | 2002-09-19 | Newnam Scott G. | System and method for operating internet-based events |
| US7668928B2 (en) * | 2001-03-13 | 2010-02-23 | Goldpocket Interactive Inc. | System and method for recording and playing back interactive content during a broadcast event |
| JP2003163850A (en) * | 2001-11-26 | 2003-06-06 | Tomo-Digi Corp | Method for controlling reproduction of contents stored as stream |
| JP2003209759A (en) * | 2002-01-10 | 2003-07-25 | Nec Corp | Data broadcast receiver and data broadcast reception system |
| US20040078814A1 (en) * | 2002-03-29 | 2004-04-22 | Digeo, Inc. | Module-based interactive television ticker |
| US7599689B2 (en) * | 2002-04-22 | 2009-10-06 | Nokia Corporation | System and method for bookmarking radio stations and associated internet addresses |
| WO2004057819A1 (en) * | 2002-12-19 | 2004-07-08 | Koninklijke Philips Electronics N.V. | A residential gateway system having a handheld controller with a display for displaying video signals |
| US7802288B2 (en) * | 2003-03-14 | 2010-09-21 | Starz Entertainment, Llc | Video aspect ratio manipulation |
-
2005
- 2005-04-21 DE DE602005012581T patent/DE602005012581D1/en active Active
- 2005-04-21 US US11/578,231 patent/US20070220564A1/en not_active Abandoned
- 2005-04-21 CN CNB2005800125608A patent/CN100515081C/en not_active Expired - Fee Related
- 2005-04-21 JP JP2006537597A patent/JP4703569B2/en not_active Expired - Fee Related
- 2005-04-21 WO PCT/JP2005/008081 patent/WO2005104558A1/en active Application Filing
- 2005-04-21 EP EP05736996A patent/EP1757101B1/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009006768A1 (en) * | 2007-07-12 | 2009-01-15 | Zte Corporation | Peer to peer system for supporting time shift service |
| US8332472B2 (en) | 2007-07-12 | 2012-12-11 | Zte Corporation | Peer to peer system for supporting time shift service |
| CN102833586A (en) * | 2012-07-25 | 2012-12-19 | 深圳市龙视传媒有限公司 | Method, terminal and system of processing applications in digital television |
| CN105874815A (en) * | 2014-01-07 | 2016-08-17 | 索尼公司 | Information processing device and information processing method |
| JP2020039171A (en) * | 2014-01-07 | 2020-03-12 | ソニー株式会社 | Reception device and reception method |
| US10798449B2 (en) | 2014-01-07 | 2020-10-06 | Sony Corporation | Information processing apparatus and information processing method for validating an application |
| CN106576181A (en) * | 2014-03-28 | 2017-04-19 | 汤姆逊许可公司 | Method and system for backward recording |
| US10523996B2 (en) | 2014-03-28 | 2019-12-31 | Interdigital Ce Patent Holdings | Method and system for backward recording |
| CN106576181B (en) * | 2014-03-28 | 2020-03-03 | 交互数字Ce专利控股公司 | Method, apparatus and medium for reverse recording |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100515081C (en) | 2009-07-15 |
| JP2007534217A (en) | 2007-11-22 |
| US20070220564A1 (en) | 2007-09-20 |
| WO2005104558A1 (en) | 2005-11-03 |
| EP1757101B1 (en) | 2009-01-28 |
| EP1757101A1 (en) | 2007-02-28 |
| JP4703569B2 (en) | 2011-06-15 |
| DE602005012581D1 (en) | 2009-03-19 |
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